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What limits during an ultramarathon?

What are the Limiting Factors During an Ultra-Marathon? A Systematic Review of the Scientific Literature. The aim of this review was to analyze factors that restricted performance with ultra-marathons and mountain ultra-marathons. A literature search in a database (pubmed) was carried out in February 2019.The information quality The article was assessed by the evidence level of Oxford and the scale of the Physiotherapy Evidence Database (Pedro). The search strategy gave a total of 111 quotes, 23 of which fulfilled the inclusion criteria.21 The 23 trimged studies had an evidence degree 2B (single cohort study), while the two remaining studies had an evidence of 5 (expert opinion). The mean value on the pedro scale was 3.65 ± 1.61 with values between 0 and 7. Participants were characterized in all studies as experienced or well-trained athletes. The total number of participants was 1'002 (893 men, 86 women and 23 unknown). The results of this overview suggest that fatigue in extreme duration is a multifactorial phenomenon that includes physiological, neuromuscular, biomechanical and cognitive factors.

40 Ironman-Triathlons in 40 Tagen

Self-Selected Pacing During a World Record Attempt in 40 Ironman-Distance Triathlons in 40 Days In the present case study, performance, speed and potential predictors were analyzed in a world record attempt of a professional triathletes to end 40 Ironman triathlons within 40 days. Intermediate times (swimming, cycling, running) and total times, body weight, daily highest temperature, wind speed, energy consumption, middle heart rate and sleep time were recorded. Nonlinear regressions have been used to examine changes in the distribution and total times for days.Multivariate regression analyzes were performed to test which variables showed the greatest influence on the dependent variable cycle, running and overall time. The athlete completed the 40 Ironman routes in a total time of 444: 22 h: min.He spent 50:26 h: min during swimming, 245: 37 h: min at cycling, 137: 17 h: min while running and 11:02 h: min in the change zone.The swimming and cycling times were slower over the days, while the maturities were slower until the 20th day and then slower until the 40th day.The total times were slowed down until the 15th day, until the 31st faster and then began to become slower until the end. The wind speed, the final time of the previous day and heart rate during cycling were important independent variables that influenced the cycle time.The body weight and average heart rate during the run were significant independent variables that influenced the mileage.Wheel capacity, mileage and body weight were significant independent variables that influenced the total time.

Change of Herzyme at a 100 km running

Factors Related to Cardiac Troponin T Increase after Participation in a 100 Km Ultra-Marathon. Intensive and longer training leads to an increase in the troponin concentration in the blood.The mechanism responsible for troponin release during workout is still unclear. The aim of the study was to search for risk factors for a troponin increase after a longer endurance competition. The study included a group of 18 amateurs, healthy volunteers (average age 41.5 years, IQR 36-53 years, 83% men) participated in a 100 km of ultra-marathon. Information on demographic features, heart rate before and after the race, blood pressure, body composition and glucose, lactate (L), troponin T (HS-TNT) and C-reactive protein concentration (HS-CRP) were obtained.In addition, data for L and glucose levels was collected all 9.2 km and for liquid / food intake during the race. There was a significant HS-TNT increase after the race that exceeds the upper reference values at 66% of the runners.None of the parameters said in case of measurement before the race a rise of the HS-TNT after the race. The only factors that correlated with changes in HS-TNT were the mean L concentration during the race and the change in HS-CRP concentration.

Muscle damage and kidney damage in endurance charges

Exertional rhabdomyolysis and acute kidney injury in endurance sports: a systematic review The increasing dissemination of endurance events in sports such as swimming in open water, cycling, running and triathlon has led to concerns about possible impact on renal function and kidney health. This study aimed to examine the results for rhabdomyolysis under load and acute renal failure in endurance sports, whereby the diagnostic criteria used as well as the physical and ecological context conditions, among which rhabdomyolysis reported under load and acute renal failure, were highlighted. According to the PRISMA guidelines for systematic reviews and meta-analyzes, topic-related studies were searched in digital sources (from 2009 to 2020). Studies with biomarkers of rhabdomyolysis under load and acute renal failure reported on endurance or ultra-endurance events have been included. A total of 43 publications were extracted, and 345 (43.5%) persons were with rhabdomyolysis under burden (creatinine kinase> 5'000 UI / l) and 130 (16.39%) with rhabdomyolysis under load and acute renal failure (creatinine ≥ 1, 88 mg / dl) diagnosed). Of the total cases of rhabdomyolysis under stress and acute renal failure, 96.92% were ultra-runner. There were inconsistencies between studies on diagnostic criteria for rhabdomyolysis under load and acute renal failure, which showed a difficulty in the interpretation of the data. Increased muscle and kidney damage immediately after endurance events have been reported, but after 5.86 days, these values normally returned to the initial value. There is a lack of knowledge about the potential of repeated rhabdomyolysis under stress and acute renal failure predisposing long-term chronic kidney disease.

Vitamin D im Sport

Vitamin D and Sport Performance Vitamin D is very important for general health, but also for sporting performance.A lack of vitamin D becomes a serious problem.It has been reported that various disturbances are associated with a vitamin D deficiency. Certain population groups such as infants, children, women before menopause, various breeds or ethnic groups and elderly people have an increased risk of osteoporosis and osteoporotic fractures. For athletes, certain groups such as women may have a higher risk of vitamin D deficiency. So far, little is known whether the supplement with vitamin D in athletes with vitamin D deficiency improves performance. An objective of this special edition is to obtain more information about the prevalence of vitamin D deficiency in various sports disciplines and populations.

At what age do you achieve the best time in half a Ironman?

The Age-Related Performance Decline in Ironman 70.3 Although age-related acceptance of performance was well investigated in sport, little is known about such a decrease in triathlets for half Ironman distance.In fact, the few existing studies focused on specific aspects such as top events, elite groups, some consecutive years, individual locations or age categories rather than analyzing all available data. The aim of this study was therefore to examine the performance of triathlets in the three disciplines (swimming, cycling and running) as well as for the entire conclusion by analyzing data from Half Ironman Finishers (690 races, years 2004 to 2018, 206 ‘524 women (24.6%) and 633'576 men (75.4%), a total of 840'100 athletes). The age-related acceptance of the achievement at Half Ironman began at the earliest when swimming (from the first age group) with a smallest delta between 35 and 49 years in men and 40 to 54 years in women.

Changes at heart during workout on a marathon

Cardiovascular Remodeling Experienced by Real-World, Unsupervised, Young Novice Marathon Runners Completing a marathon is a popular destination in modern societies, including non-athletes. Previous studies have highlighted the temporary myocardial dysfunction and the release of biomarkers immediately after the race.Whether this method for increasing physical activity is advantageous or harmful remains controversial. We investigate detailed the reaction of cardiovascular conversion to a competition in a first marathon. Sixty-five marathon runners (36 men and 32 women) At the age of 30 ± 3 years, as part of their first marathon, 6 months before and 2 weeks after the London Marathon 2016 were examined in a prospective observation study. The investigations included electrocardiography, cardiopulmonary stress tests, echocardiography and cardiovascular magnetic resonance imaging. After 17 weeks of unattended marathon training, the runners showed a symmetrical, eccentric remodeling with an increase in the size of the left and right ventricle by 3-5%.The blood pressure dropped by 4/2 mmHg, although only 11% showed a clinically significant improvement of maximum oxygen consumption with a non-significant increase in maximum oxygen consumption by 0.4 ml / min / kg. In the absence of a monitored training, the cardiovascular transformation caused by physical activity is more modest in marathon runners in the real world as previously described and occurs without improving cardorespiratory fitness.

Stairs: 1. Evaluation in this sport about participation and performance

Tower Running—Participation, Performance Trends, and Sex Difference Although there are comprehensive data to participate, performance trends and gender performance differences in different course disciplines and races, no study has analyzed these trends in stairs. The aim of the present study was therefore to investigate these trends in stairs.The data consisting of 28'203 observations of 24'007 runners between 2014 and 2019, were analyzed. The effects of sex and age were examined together with the peculiarities of the buildings (number of stairs and projectiles). Men were faster than women faster in every age group, and the performance difference remained at 0.20 km / h, with a minimum of 0.17 at the highest age.However, women were able to exceed men in certain situations: in smaller buildings (<600 levels) between 30 and 59 years and> 69 years, in higher buildings (> 2200 levels) for age groups <20 years and 60-69 years and in buildingsWith 1600-2200 stairs for an age of> 69 years.

Herz death in the triathlon

Cardiovascular Disease and Triathlon-Related Deaths in the United Kingdom Triathlon is one of the fastest growing sports in the United Kingdom.In recent years, however, several deaths have occurred. The aim of this study was to identify these cases and to investigate the role of cardiovascular diseases in these deaths. An extensive online search was conducted to identify deaths related to triathlon in the United Kingdom and the United Kingdom, which died abroad during or as a result of triathlon competitions. The British triathlon gave the number of participants who participated in events in the United Kingdom.The trials gave information about all the deceased. Between 2009 and 2015, 991,186 participants participated in events approved by the British Triathlon.Five deaths related to triathlon in the United Kingdom were identified.The mortality rate was 0.5 per 100,000 participants. Deaths occurred during or after the events swimming (3), cycling (1) and running (1).During the same period, 5 deaths related to Triathlon were found in British citizens who approached abroad.These deaths occurred during or after the events swimming (2), cycling (1) and running (2).Half of the deaths a cardiovascular pathology was called the cause or factor.Four deaths were transferred to a specialized heart pathology service for autopsy.